Woodworking-machine.



C. E. REED. wooowoRKlNG MACHINE.

APPLiCATlON FIL-EID lULY 26, |917.

Patented Nov. 13, 1917.

SHEETS-SHEET l.

0 j ,N O 3 m Ml m sa Q, fw n H 3 f aow/H M O C. E. REED. woowoRKlNG MACHINE.

APPLICATION .FILED JULY 26.1917.

Patented Nov.

7 SHEETS-SHEET 2.

@fafa C. E. REED.

WOODWORKING MACHINE. APPILICATION man JULY 26.1911.

Patented Nov. 13, 191.7.

:swims-SHEET' 3A C. E. REED.

woowoIIKING MACHINE. APPLICATION FILED IuLY 26.19I7.

l ,246,465. Patented Nov; 18, 19N.

SHEETS-SHEET 4.

C. E. REED.

WOODWORKING MACHINE.

APPL|cAT|oN-F|LED1uLY 26.1911.

Patented Nov. 13, 1917.

7 SHEETS-SHEET 5.

vE. REED. WOODWORKING MACHINE.

APPLICATION FILED JULY 26,1917.

Patented Nov. 13, 1917.

TSHEETS-SHEET 6.

C. E. REED.

WOODWORKING MACHINE.

vAPPLICATION FILED JULY 26.1911.

Patented Nom-13,

' 7SHEETS-SHEET UNTED STATES PATENT p FFCE,

CHARLES E. B/Etll',v OF CHICAGO, ILLINOIS.

'WooDWoRnrNe-Macninn.

To @ZZ who/m, t may concern.'

Be it known that I, CHARLESE, REED, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in lVoodWorking-Machines, of which the following is a specification.

My invention relates to improvements in Wood-Working machines of the type Wherein a. pattern-tracer element and a Wood-cutting element or elements are provided, together With means whereby the movement of the pattern-tracer around a pattern is translated into movement of the Wood-cutting element or elements as the case may be, to cause the Work to be turned to the same shape as that presented by the pattern, machines of this type being so constructed that during the progress of the Wood turning operation, the mechanism Which supports the pattern and Work, and the pattern-tracer and Wood-cutting element or elements as the case may be, are moved relative to each other to effect the feeding, so-to-speak, of the Work to the tracer and cutting elements, my invention relating more particularly to machines of the above referred to type wherein the cutter element or elements, are caused to move around and in Contact With the side of the Work to be operated on, in paths corresponding with the paths through which the pattern-tracer moves in traveling around the pattern, by means of mechanism Which includes a rotatable member preferably in the form of a gear, and a gyratory member supported at one end to move in a gyratory path and operatively engaging the said rotatable member eccentrically of the axis of rotation of said rotatable member, when the pattern-tracer and cutters are shifted to a position in which they extend to one side of their normal position, such positionbeing presented When the pattern-tracer engages the side of a pattern, and means tending to cause said gyratory member to occupy a central position in which itv coincides with the axis of said rotatable member, and which in the operation of the machine causes the pattern-tracer to closely hug the surfaces of the pattern in its movement. around the latter, the engagement of they gyratory member with the rotatable member as stated, being in the nature of a crank connection, a machine of the particular type just debfl lot-.19g .illustrated and de- Speccaton of Letters Patent.

Patented Nov. 13, 1917.

Application led July 26, 1917. Serial No. 182,885.

scribed inv U. S. Letters Patent 1,196,716 granted August 29th, 1916, and for use in connection with which I have more particularly devised my improvements, though the latter may be used in connection with machines the construction of which varies from that disclosed in said-patent. V

The speed of movement of the patterntracer and cutters in theirmovement about the pattern and Work respectively, is dependentfirstly upon the speed at which the above referred to rotatable member With vvliichthe gyrato-ry member has crank engagement, rotates, and secondly upon' the distance from the center of saidrotatable member to the axis ofthe gyratory member Whereit operatively engages said rotatable member, it being manifest that, assuming the rotatable member to be driven at a constant speed, the farther from the center of the rotatable member the gyra'tory member engages it, the faster the pattern-tracer and vcutters-Will move. Thus when the patterntracer is traveling around a pattern having sloping sides as in the case of a shoe last, it will travel much faster about the portion of the last Which is relatively large, than-When it is traveling around the portion of the last Which is relatively small. Furthermore this same feature of varying speeds of travel of the pattern-tracer and cutters ispresented in the use of a machine of this type for operating on Work which is to .be fashioned in conformance with a pattern Which is either of angular shape in cross-section or of relatively great width in one direction compared with the direction at. right angles thereto, as in the case of the toe-portion of a last, and in fact in connection with any kind of a pattern which is not-truly circular in cross-section and the exterior surfaces of which to be operated on are not concentric relative to the cutters. For purposes of illustration and to show hoiv this feature Works out in practice, the case ofthe toeportion of the last will be consid-ered. As the tracer in moving around the toe-portion of the last, moves outwardly against one of the flattened surfaces of the last, away from the axis vof the last, the gyratory member shifts at its point of operative engagement with the said rotatable member towardV the circumference of the latter and as the speed of rotation of the said rotatable member is 4substantially vconstant the movement ofthe lio pattern-tracer and cutters will be accelerated in the proportion that the gyratory member has moved away trom the center ot' the rotatable member. rllhus the speed of movement ot' the pattern-tracer and cutters instead of being a substantiall uniform movement in traveling about a surface such as that described, is so non-uniform and varying that it the machine is geared up to such a point that it will operate relatively rapidly to perform its work, the tracer and cutters will have a jerky movement as they travel around the pattern and work respectively, producing chattering and jumping of the cutters with the result that the work produced-by the machine is not up to the desired standard, if the machine is to be operated at a reasonable speed. Furthermore in the operation on work of tapered formation, the setting of the machinel to cause the patterntracer and cutters to move at a certain speed when traveling about the larger portion of the work, while causing the pattern-tracer and cutters to make the same number of. revolutions about the work when engaging the smaller portion thereof as they do when engaging the larger portions thereof, will cause the pattern-tracer and cutters to move very much slower than when engaging the larger portions of the work and it is manifest that this is undesirable in a machine provided for operation under general commercial conditions, as the time required for finishing the work is unduly long', and under ordinary7 conditions the operation of the cutters on the smaller portions of the work at a speed faster than the speed at which they operate on the larger portions of the work, is more conducive to the practical operation of the machine. Y

The machines of the construction shown in said patent have been provided with manually operated speed changing mechanism whereby the operator of the machine could control the speed at which the rotatable member travels. Such controlling mechanism however, while serving as a means for controlling the speed of the rotatable member to accelerate it as the cutters approached the extremity of the work, as for example the last, at the smaller end thereof, do not present any means whereby the operator, even if he remained stationed at the machine, could practically control the speed at which the pattern-tracer and cutterswmoved Varound the work where it is irregular as above stated, and render the speed of movement of the tracer and cutters uniform, or substantially uniform, to avoid the chattering and iumping referred to. .My primary object is to provide in amachine of the character above stated, means which shall operate automatically to control the speed or'1 the said rotatable member, or its equivalent element, to the end of render- 'operate with the vhigh grade of work, in as much as the work turned out by the machine is an exact reproduction in shape of the pattern, permitting the machine to be operated at the maximum speed and producing maximum etliciency and 'economy of operation. A further object is to provide for the automatic speeding up of the machine in the movement of vtracer and cutters from portions of the work, tol portions thereof of less cross-sectional'area, as in the case of tapered work, which feature also permits the machine to greatest ei'iiciency and economy, and with maximum capacity. Another object is to provide means of the character justV discussed which shall be adjustable to vary the proportions between the speed at which the pattern-tracer and cutters revolve about the tracer and work when traveling throughouta path of a given length, and the speed at which these eicments travel when moving through path of less length, to adapt the machine te perform the most eective work in operating upon diiierent sizes and shapes of work, and another object is to provide an arrangement oi"- spring-devices Vwhereby danger of indenting the pattern, or rounding sharp corners thereof will be avoided.

inasmuch as I have devised my improvements for use more particularly in connection with the general construction of the machine illustrated and described in the above referred to patent, l have chosen to illustrate it in connection therewith, wherein in the drawings Figure 1-ls view in side elevation of the machine of the said patent equipped with my improvements.

F ig. Q-A rear view in elevation ofthe machine of Fig. l.

Fig. 3-A plan view of the machine of Fig. l.

Fig. t-An enlarged section taken at the line et on Fig. 2 and viewed in the direction of the arrow.

Fig. -A section taken at the irregular line 5 on Fig. -t and viewed'in the direction of the arrow.

Fig. G-An enlarged section taken at the line 6 on Fig. 5 and viewedin the direction of the arrow. I Fig. 7-A plan view of the structure shown in the preceding figures with Vthe translating elements interposed between the pattern-tracer and the gyratory member being removed to disclose details of construction.

Fig. S-Aln enlarged view in rear elevation of themachine shown in Fig. 2 for controlling the speed of rotation of the-gear which drives the gyratory member.

Fig. 9-An enlarged section taken at the line 9 on Fig. 8 and viewed inthe direction of the arrow. .Y

Fig. lO-A View taken alongthe line 10 in Fig. S and viewed in the directionof the arrow.

lnasmuch as the general features of the machine illustrated are thesame as those of the machine illustrated and described in the said patent, a general description thereof only will suflice, tliis'description being as follows:

rihe upright frame portion of the machine is represented at 20, this frame carrying the operative parts of the machine. At one side of this frame and confined thereon, to be vertically movable, is aV carriage 21, which in the operation of the machine is caused to slowly descend during the operation of the pattern-tracer and cutter e ements as hereinafter described. This carriage is equipped at its upper' end with outwardly extending spaced arms 22 in the outer ends of which a yoke-shaped work-holder member 23 is trunnioned to'adapt it to be rotated upon the arms 22 through an aro of substantially 180o, the means forv swinging the work-holder over from one position to the other thereof and holding it rigidly in the position to which it is moved being represented at. 24. The work-holder 23 is'provided with clamping devices for receiving and holding in spaced relation a plurality of pieces of worlr to be operated upon, as for example the lasts represented at 25, and the pat-tern, it being understood that these lasts and pattern which extend in a general vertical direction` are disposed in a substantially horizontal series across the front of themachine and that either ends of the lasts 25 may be operated on to trim'oif' the stubs thereon, by adjusting the work-holder about its trunnions. Y

j The pattern-tracer is represented in FiO. 3 at 26 and the upper ends of the cutter devices at 27, these devices being mounted on a plate 28, tlie cutters 2T to be rotatable thereon and the latter continuously rapidly rotated by means of belts29 driven from a roller 30 in turn driven by a belt 31 from pulley 32 this pulley being carried by a shaft 33 driven by any suitable means. The slide 2S is mounted to be freely movable across the front of the machine ina horizontal direction, this slide being so mounted upon a member 38, which is guidedly confined on the upper portion of the frame 2O to have straight-line movement in a horizontal plane from front to rear of the machine. The member 38 carries a horizontal extending lever 39 pivotally supported, inte mediate its ends, as represented at 40, this lever bep'ivotally connected at 44 with a link 45- which is pivotally connected with a pest k46 which extends downwardly through a slide 47 mounted on an underlying slide 48,to

be movable cros'swise of the latter, or in other words at substantially a right angle to the line of movement of the slide 38,' the slide 48 being guidedly confined at bearings 49 on the upper portion of the casing 20, to be movable horizontally substantially in the saine direction as the line of movement of the slide 38. rlhe post 46 extends downwardly at a collar portion 50 thereon into and through a radially-disposed slot 5l in a gear 52 rotatably mounted in the upper portion of the casing 20, this gear being driven by mechanism hereinafter described.

The pest45 has journal i'it the upper open end of tubular member 53 having a foot portion in the forni of a ring which bears flatwise against the bottoni of a groove 55 in a seat 55 supported on a cross member 57 provided in the casing .20, the member 53 bearinff iiatwise at its portion 54 against the seat referred to, or in other words extending at substantially a rightangle to the plane of said seat when the post 46 extends coincidentwith the axis about which the gear 52 rotates. When the pattern-tracer and cutters are moved out of centralized posit-ion, as is the case where the pattern-tracer engages a side of the pattern as illustrated of the cutter relative to the last 25 in Fig. l, the slides connecting the pattern-tracer and cutters with the post 45 are moved out of normal position and the post 46 extends in the slot 51 eccentric-ally of the center of the gear 52 as represented in Fig. 4, in which position the member 53 is tilted out of vertical position as shown in Fig. 4. As the gear 52 continues to rotate so long as the patterntracer engages the side of the pattern, the member 53 will move in a gyratoiy path around its normal central plane by reason of the crank action of the gear on this member. A spring 58 located in the member 53 connects at its upper end with the cross-pin 59 in the member 53 and at its lower end with a flexible member, such as the chain 60 rillustrated which extends downwardly through the Vseat 56, overa pulley 61 and connects with an adjustable device 62 for varying the tension of the spring. This spring, together with another spring hereinafter described in the particular illustrated construction, operates to yieldingly maintain the member 53 in upright centralized pesition and by constantly pulling on the member 53 tending to right it, causes the patterntracer to hug the pattern as it revolves around the latter, the cutters by revolving chine.

in paths corresponding with the paths through which the tracer, moves, cutting the work to form corresponding with that of the pattern.

rllhe g'ear 52 meshes with a pinion 61 mounted on the upper end of a shaft 62 journaled in a bearing 63 in the casing 20, the lower end of this shaft being equipped with miter-gear 6l which meshes with a similar gear 65 on a shaft `05a journaled in the machine and carrying at its outer end a disk G0 which cooperates witn a frictionroller 67 mounted on a shaft G8 supported in bearings 69 and 70 provided at the upper ends of arms 71 and 72 rising from a sleeve journalcd on a shaft 7l liXed in a housing 75 extending rearwardly from the casing 20, the outer end of the shaft 68 carrying a pulley 7G belted as by the belt 77, to a pulley 78 on a shaft 35, driven by a belt 36 which connects a pulley 87 on thedrive-shaft 83 with a pulley 3l on the shaft The roller 67 is rigid with a sleeve :200 which is supported from the shaft (3S by ball bearings 201 arranged about this shaft, preferably with the balls staggered, certain of these balls, represented at 202, being larger than the others and arranged in a series extending lengthwise of the shaft 68 and located in grooves 203, 201i respectively, in this shaft and slee-ve. rlhe balls are retained in a ballretainer of sleeve form and operate to permit the sleeve 200 and roller 67 to slide along the shaft 68 but be held against independent rotation thereon. It will be understood from the foregoing that by sliding the friction roller 67 across the face of the disk 6G toward the center of the latter, the speed at which this disk is rotated is materially increased and when this roller is moved across the face of the disk away from its center the speed of the disk is correspondingly decreased. Furthermore the provisionv of the rocking bearing-frame permits of the movement of the friction roller 67 into and out of a position in which it frictionally bears against the face of the disk 66 thereby aiording a means for controlling the connection of the disk G6 and the parts operated thereby, with the driving power of the maln the particular construction of machine illustrated the swinging of the pivotally mounted member in which the shaft 68 is journaled is effected through the medium of a rod 68a having a spring connection of the same general character as that shown in the said patent, with a post 68b rising from the bearing 69 of the rocking-frame, this rod having pivotal connection at 79 with a crank S0 on a rotatable member 81 journaled in a plurality of bearings on the outer side of the casing 20, this member 81 also having a crank section 82 which connects by a rod 83 with a crank arm 84 pivotally supported and controlled by a lever 85 as in the said patented construction, the mechanism just referred to operating when the lever 85 is moved in one direction to swing the frame carrying the shaft 68 to a position in which the roller 67 is out of engagement with the disk 66 and when moved in the opposite direction to swing this frame to a position for causing the roller 67 to frictionally engage the disk 66. The mechanism for automatically stopping the rotation of the gear 52 when the cutters have completed the operation of cutting the work involves the rod 68a, crank 80, crank 87 and a pawl-lever 88 operating as in the case of the said patented construction.

According to my invention means are provided, as above stated, for automatically controlling the speed of rotation of the gear 52 to render uniform throughout any given path of movement, the speed at which the pattern-tracer and cutters revolve about the pattern andthe work respectively, and also to speed up the movement of the tracer and cutters about the pattern and work, respectively, as the tracer and cutters move from the relatively large portions of the pattern and work to the relativelyl small portions thereof, as presented by work of tapering form.

The following is a description of this mechanism when constructed in accordance with the preferred embodiment of my invention. Journaled to extend transversely through the casing 20, is a shaft 90, the end thereof which extends through the rear wall of the said casing carrying a crank 91 clamped to the shaft by means of a clamping screw 92 engaging the split portions 93 of the portion of the said crank which surrounds the shaft. Rising from the outer end of the crank 91 and secured thereto in a slot, as by a set-screw 94, is a spring-bar 95, preferably of laminated construction, which extends into a slot in a head 96 in which it is secured by a set-screw 97. A link 98, pivotally connected with the head 96 as by the pin 99, eXtends laterally of the bar and is pivotally connected with a screw device 100 forming a part of a clamping device 101 which is adjustable up and down in a slot 102 in the lower end of a lever 103 journaled at its upper end on a shaft 104 eX- tending rearwardly from the casing 20. The clamping device referred to in the particular construction shown vis formed of the screw 100 which has 'threaded thereon a sleeve-section 105 extending part-way through the slot 102 and provided with an angular head 106, and a wing-nut 107 screwing upon the end of the screw device 100. The lever 103 is embraced between the head 106 and wing-nut 107, which operate to clamp this lever between the head 106 and Wingnut 107 and hold the clamping device in adjusted position along the slot 102,whi1e maintaining the pivoted connection of the link 98 with the screw 100, as illustrated in Fig. 10. Thel ver 103 contains in the slot 102, below the adjustable clamping device 101, a similar clampingdevice 103 forming` a pivotal connection for a link 109, this link also having' pivotal connection with an adjust-able clamping device 110 like the clampingt device 101, adjustable up and down in a slot 111, in a lever112 journaled at its lower end on a pin 113 extending rearwardly from the casing` 20, the upper end of the lever 112 being provided with a pin 115 forming journal support for a roller 111 which extends into an annular groove 116 in the periphery of the sleeve 200, whereby when the lever 112 is rockedl on its fulcrum 113 it will shift the sleeve 200 `and consequently the rollert? along the shaft 68 toward or away from the center of the disk 66 depending on the direction in which the lever is rocked, and thereby control the speed at which the disk G6 is rotated.

The springI hereinbefore referred to as cooperating with the spring 5S is represented Y. at 112, this spring being` connected at one end to tno lever 112 and at its opposite endV to a post on the standard 20 by an ad-V juStlble connection 112D. rllhe spring.' 112a is preferably so adjusted that when the parts occupy the positions shown in Fig. S this spring` will be under practically no tension.

1n accordance with my invention the shaft 90 is rocked in one direction or the other responsive to the change in the angle Vat which the member 53 extends relative to the plane occupiedv by it when in centralized position, the greater the angle at which this member tilts the greater the roel-ring movement of the shaft 90 in aY direction for shifting the friction roller 67 away from the center of the disk 66 to slow down the speed of rotation of the gear 52, the preferred mechanism for effecting' the rocking of the shaft 90 being` that shown and of which the fol lowing is a description. Surrounding the lower end of the tube is a universal ithese pins are unthreaded and extend inwardly beyond th member 118 and have journal fit in diametrically-opposed openings 120 in the lower end of the tube e3 whereby the frame member 11S is free to have rocking movement on the tube 53. The lower end of the tube 53 at the diametrically-opposed portions thereof at substantially a ri nhtangle to the line connecting the pivots 120 is cut away as represented in Fig'. 6, and the member 118 adjacent these cut-away portions and midway between the ends of the member 118 is provided at its opposite sides with headed pins'121 to the outer ends of which depending parallel bars 122 are pivotally connected, these bars having,` connection at their lower ends with the ends 123 of a block 121 which is pivotally'connected with the arms 125 provided on the upper side of a crank 126, pinned as indicated at 127, to the shaft 90 by means of pivot pins 128,1the Connection thus aiforded between the bars 122 and the crank 125 being in the nature of a universal joint. By the connections thus provided between the crank 126 and the tube 53 the latter is free to gyrate hereinbefore described and rock the shaft 90 through the medium ofthe crank125, responsive t0 the movement of VYthe member 53 toward and away from the plane it occupies when in centralized position.

It will be clearly understood from the foregoing that, assuming the pattern-tracer to be cooperating with a pattern of angular shape in cross-section or of relatively greater width in one direction than in a direction at right angles thereto, as the tracer incmoving againstA the side of the pattern, is forced away from centralized position, or in other words, as it starts to go around the corner of the patterinthe post 4:6 coperating with the gear 52, will move outwardly in the slot 51, thus tiltine'the member 53 to a greater degree with the result of lifting the hereinbefore described mechanism connected with the lower end of the member `53 and rockingl the shaft 90 in counter-clock# wise directionin Figs. 2 and 5, with the re sult of shifting the roller 67 on the shaft 68 away from the center of the disk66 through the medium of the bar 95, link`98, lever 103, link 109 and lever 112, which slows down thespeed at whichthe gear 52 rotates, and the reverse action takes place when thepattern-tracer in moving around the pattern, moves in -a` direction toward the plane .in which the pattern-tracer normally extends when it is out of engagement with a pattern.

1t will be noted that the rotary movement of the shaft 90 is communicated to the roller 67 for slidingV it along` the shaft 63 by means of the above referred to bar, links and levers which by being adjustably connected with each other as hereinbefore explained, adapts the machine to be so set that the speed at which the pattern-tracer moves around a pattern may be rendered uniform or substantially so, and the speed at which thepattern-tracer is caused to travel may be regulated as desired. Furthermore by the adjustable features justreferred to, the speed at which the pattern-tracer travels around .the small end of a pattern relative to the speed at which it travels around the larger portion thereof may be varied as desired, to

Yrender the speed of rotation of the tracer throughout the operation of cutting an end of the work, uniform 0r substantially uniform 0r greater or less than during the move# ment of the tracerv around the smaller end of the pattern. However, as under the condtions presented, especially When 'operating on lasts, it is practicable and desirable for the most economical operation of the machine and the greatest efficiency of operation, to increase the number of revolutions made by thepattern-tracer for any given length of time when traveling around the small end of the pattern, the adjustable parts last above referred to Yare preferably so adjusted as to produce the result just stated, this being possible by adjusting the various links relative to the levers 103 and In the particular construction of machine illustrated the brake device for coperation with the disk 66 for quickly stopping the latter when the roller 67 is moved out of en gageme'nt therewith Yin the stopping of the gear 52, comprises a brake-shoe 129 mounted on the inner end of a pin 130 projected for- Wardly from a depending extension 131 on the sleeve 73. By this arrangement When the frame in which the shaft 68 is journaled is rocked to move the roller 67 out of engagement With the disk 66, the brake-shoe 129 moves into engagement'ivith this disk and arrests rotation of the latter.

The arm Y95 is preferably of laminated spring construction as above stated in order that there will be a. slight give to this part ofthe mechanism and cause it to operate more smoothly than it Would if all of the connections were rigid. While the provision of the two springs is not essential to the positioning ofV the more essential feature of my invention, this feature is desirable, as thereby the spring tension necessary to prevent the cutting element, or elements, from jumping when the latter are moving through a relatively long path, is provided, Without objectionable spring tension When the cutter, or cutters, are moving through relatively short paths.

lVhileI have illustrated and described a particular construction embodying my invention, I do not Wish to be understood as intending to limit it thereto, as the saine may be variously modified and altered Without departing from the spirit of my invention, it being my intention to claim my invention as fully and completely as the prior state of the art Will permit.

That I claim as neiv and desire to secure by Letters Patent is 1. In a Wood-Working machine, the combination of a pattern-tracer, a cutter, means operatively connecting together said tracer and cutter, means for causing said tracer to move around, and in contact with, a pattern, and so constructed and arranged that under substantially uniform speed of an element thereof, the speed'of movement of the tracer While in engagement With the pattern Will be greater or less, respectively, as the tracer moves away from, or toward, the aXis of the pattern, and means operating automatically to cause said element to be driven slower when said tracer moves away Vfrom the axis of the pattern and to cause said element to be driven faster as said tracer moves toward the axis of the pattern.

ln a Wood-Working machine, the combiation of a pattern-tracer, a cutter, means operatively connecting together said tracer and cutter, means for causing said tracer to move around, and in contact with, a pattern, and so constructed and arranged that under substantially uniform speed of an element thereof, the speed of movement of the tracer While in engagement with the pattern will be greater or less, respectively, as the tracer moves away from, or toward, the axis of the pattern, and adjustable means operating automatically to cause said element to be driven slower When said tracer moves away from the aXis of the pattern and to cause said element to be driven faster as said tracer moves toward the axis of the pattern.

3. In a niood--nf'orking machine, the combi nation of a pattern-tracer, a cutter, means operatively connecting together said tracer and cutter, means for causing said tracer te move around, and in contact With, pattern, and including a rotatable member and a member having engagement with said rotatable member and actuated by the latter to travel about the center of said rotatable member When said tracer engages a pattern, said second-named member being shiftable toward, and away from, the center of said rotatable member, the position occupied by said second-named member relative to the center of said rotatable member being dependent on the thickness of that portion of the pattern Which is 'in engagement With the tracer, and means operating automatically to reduce the speed at which said rotatable member travels When said seconder-,a ed member moves away from the center of said rotatable member and to increase the speed at which said rotatable member travels when said second named member moves tov-'ard the center of said rotatable member.

4. In a Wood-Working machine, the combination of a pattern-tracer, a cutter, means operatively connecting together said tracer and cutter, means for causing said tracer to move around, and in contact With, a pattern, and including a rotatable member and a member having engagement With said rotatable member and actuated by the latter to travel about the center of said rotatable nember when said tracer engages a pattern, said second-named member being shift--- able toward, and aivay from, the center of said rotatable member, the position occupied by said second-named member relative to tl e center of said rotatable member being dependent on the thickness of that portion of the pattern which is in engagementwith the tracer, and adjustable means operating automatically to reduce the speed at which said rotatable member travels when said secondnamed member moves away from the center of said rotatable member, and to increase the speed at which said rotatable member travels when said second-named member moves toward the center of said rotatable member.

5.111 a woodworking machine,'the combination of a pattern-tracer, a cutter, means operatively connecting together said tracer andicutter, means for causing said tracer to move around, and in Contact with, a pattern, and including a rotatable member and a member having engagement with said rotatable member and actuated by the latter to travel about the center of said rotatable member when said tracer engages a pattern, said second-named member being shiftable toward, and away from, the center of said rotatable member, the position occupied by the said second-named member relative to the center of said rotatable member being dependent on the thickness of that portion of the patternwhich isin engagement with the tracer, and means operating automatically to reduce the speed at which said rotatable member travels when said secondnamed member moves away from 'the center of said rotatable member and to increase the speed at which said rotatable member travels when said second-named member moves toward the center of said rotatable memb r, said last-named means including a plurality of levers adjustably connected together by links` 6. in a woodfworking machine, the combination of a pattern-tracer, a cutter, means operatively connecting together said tracer and cutter, means for causing said tracer to move around, and in contact with, a pattern, and including a rotatablemember, a friction disk operatively connected with said member and adapted when driven to rotate the latter, a driven roller adapted to drive said disk and shittable relative to'said disk, to vary the speed at which the latter is rotated, and a member having engagement with said rotatable member and actuated by the latter to travel about the center otsaid rotatable member when said tracer engages a pattern, said second-named member being shiftable toward, and away Jfrom, the center of said rotatable member, the position occupied by said second-named member relative to the center of said rotatable member being dependent on the thickness of that portion of the pattern which is in engagementwith the tracer, and means operating automatically to shift'said roller relative to said disk to a position for reducing the speed at which said rotatable member travels when said secondnamed member moves away from the center of said rotatable member and to move said roller relative to said disk to a position in which the speed at which said rotatable member travels is increased when said sec-v ond-named member moves toward the center or" said rotatable member.

7. ln a wood-working machine, the com-l bination of a pattern-tracer, a cutter, means operatively connecting together said tracer and cutter, means for causing said tracer to movearound, and in contact with, a pattern, and including a rotatable member, a member having engagement at one end with said vrotatable member eccentric ot the axis of the latter and actuated by the latter to travel about the center of said lrotatable member when said tracer engages a pattern, said second-named member being shi'table toward, and away from, the center of said rotatable member, and means for drawing said second-named member into a position in which it is concentric withthe axis of said rotatable member, the position occupied by said second-named member relative to the center ot said rotatable member being dependent on the thickness of that portion of the pat tern which is in engagement with the tracer, and means operating Vautomatically to reduce the speed at which said rotatablemember travels when said second-named member moves away from the center otl said rotatable member, and to increase the speed at which said rotatable member travels when said second-named member .moves toward the center of said rotatable member.

8. 1n a wood-working machine, the combination of a patterirtracer, a cuttermeans operatively connecting together said tracer and cutter, means for causing Vsaid tracer to move around, and in contact with, a vpattern, and including a rotatable member, a member having engagement with said rotatable member and actuated by the latter t0 travel about `the center o3 said rotatable member whenr said' tracer engages a pattern, said second-named member being shiftable toward, and away from, the center of said rotatable member, the position occupied by said second-named member relative to the center of said rotatable member being dependent on the thickness of that portionl of the pattern which is in engagement with the tracer, and relatively movable elements through the medium of which said rotatable member is actuated, and means operating automatically to reduce the speed at which said rotatable member travels when said second-named member moves away from the center of said rotatable member, and to increase the speed at which said rotatable member travels when said second-named member moves toward the center of said rotatable member, said last-named means including a shaft mounted to be rocked, and means actuated by said shaft' for shifting said elements relative to each other.

9. In a wood-,working machine, the combination of a pattern-tracer, a cutter, means operatively7 connecting together said tracer and cutter, means for causing said tracer to move around, and in Contact with, a pattern, and including a rotatable member and a member having engagement with said rotatable member' and actuated by the latter to travel about the center of said rotatable member when said tracer engages a pattern, said second-named member being shiftable toward. and away trom, the center of said rotatable member, the position occupied by said second-named member relative to :the center of said rotatable member being dependent on the thickness of that portion of the pattern which is in engagement with the tracer, and means actuated by said secondnamed member, and operating automatically to reduce the speed at which said rotatable member travels when said second-named member moves away from the center of said rotatable member and to increase the speed at which said rotatable member travels when said second-named member moves toward the center of said rotatable member.

l0. In a wood-working machine, the combination of a pattern-tracer, a cutter, means operatively connecting together said tracer and cutter, means for causing said tracer to move around, and in contact with, a pattern, and including a rotatable member and a tiltable member having eccentric engagement at one end with said rotatable member and actuated by the latter to travel about the center of said rotatable member when said tracer engages a pattern, said secondnamed member being shiftable toward, and away from, the center of said rotatable member, the position occupied by said sec- 1 ond-named member relative to the center of said rotatable member being dependent on the thickness of that portion ot the pattern which is in engagement with the tracer, and means operatively engaging, and actuated by, said second-named member operating automaticallyv to reduce the speed at which said rotatable member travels Vwhen said second-named member moves away from the center of said rotatable member and to increase the speed at which said rotatable member travels when said second-named member moves toward the center of said rotatable member.

ll. ln a wood-working machine, the combination oi' a pattern-tracer, a cutter, means operatively connecting together said tracer and cutter, means tor causing said tracer to move around, and in Contact with, a pattern, and including a rotatable member, and a tiltable member having eccentric engagement at one end with said rotatable member and actuated by the latter to travel about the center of said rotatable member when said tracer engages a pattern, said secondnamed member being shiftable toward, and

away from, the center of said rotatable member, the position occupied by said second-named member relative to the center of said rotatable member being dependent on the thickness of that portion of the pattern which is in engagement with the tracer, and means Voperating automatically to reduce the speed at which said rotatable member travels when said second-named member moves away from the center of said rotatable member and to increase the speed at which said rotatable member travels when said second-named member moves toward the center of said rotatable member, said last-named means `including a shiftable device connected with said secondnamed member at the end thereotrropposite that which engages said rotatable member and at a point substantially coincident with the axis or' said second-named member whereby in the tilting of said second-named member to different positions, said shittable device is caused to be shifted l2. In a wood-working machine, the combination of a pattern-tracer, a cutter, means operatively connecting together said tracer and cutter, means for causing said tracer to move around, and in contact with, a pattern, and including a rotatable member and a tiltable member having eccentric engagement at one end with said rotatable member and actuated by the latter to travel aboutVV away from, the center of said rotatableV member, the position occupied by said second-named member relative to the center of said rotatable member being dependent on the thickness of that portion of the pattern which is in engagement with the tracer, and means operating automatically to reduce the speed at which said rotatable member travels when said second-named member moves away from the center of said rotatable member and to increase the speed at which said rotatable member travels when said second-named member moves toward the center of said rotatable member, said last-named means including a shiftable device connected by a universal joint with said second-named member at the end thereof opposite that which engages said rotatable member and at a point substantially coincident with the axis of said secondnamed member, whereby in the tilting oi' said second-named member to ditlerent positions, said shiftable device is caused to be shifted.

'13. In a wood-working machine, the combination of a pattern-tracer, a cutter, means operatively vconnecting together said tracer and cutter, means for causing said tracer to move around, and in contact with, a pattern, and including a rotatable member, and a tiltable member having eccentric engagement at one end With said, i'otatable member and actuated by the latter to travel about the center oit said yrotatable member when said tracer engages a pattern, said second-nained member being shiftable toward, and away from, the center of said rotatable member, the position occupied by said second-named member relative to the center of said rotatable member being dependent on the thickness of that portion ot the pattern Which is in engagement with the tracer, and means operating automatically to reduce the speed at which said rotatable member travels ivhen said secondnamed member moves aivay from the center of said rotatable inember and to increase the speed at Whiehsaid rotatable member travels When said secondnamed member moves toivardthe center of said rotatable member, said lastnamed means including azshift'able device Which operatively engages said second-iiained member and is moved into different positions by the action of saidsecondiiamed member in tilting-to different positions, and a rocksliaft ivith Which said shitable device is eccentrically connected.

14e. In a Wood-Working machine, the coinbination of a pattern-tracer, a cutter, means operatively connecting together said tracer and cutter, means for causing said tracer to move around, and in contact ivith, a pattern, and including a rotatable member, and a tiltable member having eccentric engagement at one end with said rotatable member and actuated by the latter to travel about the center of said rotatable member When said tracer engages a pattern, said secondnamed member being shit-table toward, and avvay from, the center of said rotatable member, the position occupied by said secondnamed member relative to the center of said rotatable member being dependent on the thickness of that portion of the pattern which is in engagement with the tracer, and means operating automatically to reduce the speed at Which said rotatable member travels When said second-named member moves away from the center of said rotatable member and to increase the speed at which said rotatable member travels When said secondnamed member moves toward the center of said rotatable member, said last-named means including a relatively rigid shiftable device connected with the end of said second-named member opposite that at Which the latter engages said rotatable member, by a universal joint connection whereby the tilting of said second-named member to dit ferent positions actuates said shiftable device, and a rock-shaft With which said shiftable device is eccentrically connected.

15. In a wood-Working machine, the combination of a pattern-tracer, a cutter, means operatively connecting together said tracer and cutter, and means for -causing said tracer to move around, and in Contact with, pattern and operating automatically to regulate the speed of movement of said ,1

tracer and cutter respectively, in the movements of these parts through paths lat different distances from the axes of said pattern and Work. y I

16. In a Wood-Working machine, the combination of a pattern-tracer, a cutter, means loperatively connecting together saidv tracer and cutter, and means for causing said tracer to move around, and in contact` with, apattern and operating automatically to cause bination of a pattern-tracer, a cutter, means operatively connecting together said tracer ,andl cutter, .andfineans vfor causingy said tracer to move around. and in contact with, a pattern and -operating. automatically to causeV the tracerand cutter tc be moved faster around the pattern and Work respectively in the movement of the tracer and cutter into engagement with portions of the pattern and Work of less cross-sectioiial area.

18. In a Wood-Working machine, the coinbination of a pattern-tracer, a cutter, adjustable means operatively connecting together said tracer and cutter, and means for causing said tracer to move around, and in contact With, a pattern and operating automati cally to regulate the speed of movement of said tracer and cutter respectively, in the movements of these parts through paths at different distances from the axes of said pattern and Work.

19. In a. Wood-Working machine, the combination of a pattern-tracer, a cutter, adjustable means operatively connecting said tracer and cutter, and means for causing said tracer to move around, and in contact With, a pattern and operating automatically to cause the tracer and cutter to travel at substantially uniform speed throughout their movement about the pattern and Work respectively, in paths non-concentric with the axes of the pattern and Work.

20. In a Wood-Working machine, the combination of a pattern-tracer, a cutter, adjustable means operatively connecting to gether said tracer and cutter, and means for causing said tracer to move around, and in contact With, a pattern and operating automatically to cause the tracer and cutter to be moved faster around the pattern and Work respectively in the movement of the tracer and cutter into engagement with portions of the pattern and Work of less cross-sectional area.

21. In a Wood-Working machine, the combination of a pattern-tracer, a cutter, means operatively connecting together vsaid tracer and cutter, a rotatable member, a member having engagement with said rotatable member and actuated by the latter to travel about the center orp said rotatable member when said tracer engages a pattern, said secondnamed member being shiftable toward, and avvay from, the center of said rotatable member, means operatively connecting said second-named member and said tracer and cutter and operating to cause said second-named member to be shifted to eccentric position relative to said rotatable member When said tracer engages a pattern, a device tending to move said second-named member toward the center of said rotatable member, and an auX- iliary spring device for supplementing the action of said first-named device.

22. In a Wood-Working machine, the combination of a pattern-tracer, a cutter, means operatively Connecting together said tracer and cutter, a vrotatable member, a member having engagement with said rotatable member and actuated by the latter to travel about the center of 'said rotatable member When said tracer engages a pattern, said second-named member being shiftable toward, and away from, the center of said rotatable member, means operatively connecting said second-named member and said tracer and cutter and operating to cause said secondnamed member to be shifted vto eccentric positionv relative to said rotatable member when said tracer engages aapattern, a de vice tending vto move saidv second-named member toward the center 'of said rotatable member, means operating automatically to cause said rotatable member to be driven slower when said tracer moves away fromv CHARLES E. anni).

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of ratents,

` Washington,- D. C. 

